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arXiv · 1305.5983

Nonlinearity Induced Critical Coupling

K. Nireekshan Reddy·Achanta Venu Gopal·S. Dutta Gupta
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Abstract

We study a critically coupled system (Opt. Lett., \textbf{32}, 1483 (2007)) with a Kerr-nonlinear spacer layer. Nonlinearity is shown to inhibit null-scattering in a critically coupled system at low powers. However, a system detuned from critical coupling can exhibit near-complete suppression of scattering by means of nonlinearity-induced changes in refractive index. Our studies reveal clearly an important aspect of critical coupling as a delicate balance in both the amplitude and the phase relations, while a nonlinear resonance in dispersive bistability concerns only the phase.

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K. Nireekshan Reddy, Achanta Venu Gopal, S. Dutta Gupta. 2013-05-26. Nonlinearity Induced Critical Coupling. https://doi.org/10.1364/ol.38.002517

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